Whilst trying to hit my NAS from Firefox on my Mac, I kept seeing errors such as:-
Unable to connect
Firefox can’t establish a connection to the server at 192.168.1.23:5000.
The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer’s network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.
If you are trying to load a local network page, please check that Firefox has been granted Local Network permissions in the macOS Privacy & Security settings.
The same page worked in Safari, and I was able to SSH into the NAS, so knew that the network was not a notwork :-)
There's a clue in the last sentence of the error, which is nice ( and, I suspect, may have been added recently ) : -
If you are trying to load a local network page, please check that Firefox has been granted Local Network permissions in the macOS Privacy & Security settings.
Yes, you've guessed it...
Once I checked the box for Firefox, I was off to the races ...
